Phycocyanin is natural pure blue colorant extracted from Spirulina.It is a nutritious protein with a full range of amino acids. It is water soluble and non-toxic. It's the only natural blue pigment that FDA recognised in the United States. The European Union has already listed it as a raw material for food colorant and its use is unrestricted.Phycocyanin can be applied in: ice cream, chewing gum, powder drink, cool drink, cake, candy, jelly, noodles, custard, sugar coated tablets, capsules, etc.